Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4391010 | Disposable draw sheet | — | 1983-07-05 |
| 4382539 | Two-way envelopes with return flap positioning means and method | — | 1983-05-10 |
| 4332346 | Two-way envelope | — | 1982-06-01 |
| 4257696 | Photographic printing apparatus | Philip E. Hensy | 1981-03-24 |